koneman



2 Sheets-Sheet 1. A

Patented Mar. l, 1892.Y i

(ANO Model.)

W., A. KONEMAN. APPARATUS 'POR UTILIZING WASTE HEAT.

l fw! (No Model.) A 2 sheets-"sheen 2'. W..A. KONEMAN. APPARATUS PORUTILIZING WASTE HEAT.

No. 469,860. Patented Marpl, 1892.

UNITED STATES PATENT OFFICE.

IVILLIAM| A. KONEMAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE CHICAGO HEATSTORAGE COMPANY, OF SAME PLACE.

APPARATUS FOR UTILlZlNG WASTE HvEAT.

SPECIFICATION forming part of Letters Patent No. 469,860, dated March 1,1892.

l Applioationled May 8, 1891. Serial No. 392,099. V(No model.)

To @ZZ whom it may concern:

Be it known thatl, WILLIAM A. KONEMAN, a citizen of 'the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in IVaste-Heat-UtilizingApparatus, of which the following is a specification. The obj ect of myinvention is to provide an especially effective apparatus for utilizingthe Io waste hot products of combustionv on their way from a furnace orother heater to the stack for heating previous to its admission to suchfurnace air for promoting combustion of the fuel employed, thereby toattain the obviously resultant economy in fuel and incia Verticalsection of the device illustrated in Fig. 2. Fig. lis a section taken onthe line 3o 4 4 of either Fig. 2 or Fig. 3 and viewed in the directionof the arrows.

The generally-stated plan of my improvedapparatus is to havecontrollably communieating with the outlet or outlets for the productsof combustion of a furnace orany number of furnaces, but extraneoustherefrom, the waste-heatutilizing device interposed in the course ofthe products of combustion to the stack and vcontrollably communicating4o with the air-supply to it and through it to the furnace. Thewaste-heat-utilizer is divi-ded into separatecontrollably-intercommunicating chambers, each of which contains aninterstitial pile of non-combustible material, as

checker-work of fire-brick. The Waste products of combustion from thefurnace or furnaces are caused to pass through, one at a time of thesechecker-chambers, to the stack, thereby giving off their heat to thechecker- 5o work, which is thereby reduced to avery hot state, so thatwhen the products of combustion reach the stack they are greatly reducedin temperature, thereby avoiding excessive heating of the stack. Thenthe checkerwork in one of said chambers has attained the temperatureofthe hot products of combustion passed through it, so that it will takefrom them no more heat, the outlet from the furnaceorfurnaces is causedto comm unicate with the stack through the other checker-chamber 6o toheat it in the same manner. At the same tim e th e chamber alreadyheated, as described,

is caused to communicate from one end with the air-supply and from theother end with the combustion-chamber of each furnace to cause the airto be heated by the checker-work on its course to such combustionchamber. Thus each of theYchecker-chambers is alternately heated by andutilized to give up its heat abstracted from the waste products of 7ocombustion to be reconveyed with the air to the combustion-chamber ofeach furnace in the system. But one waste-heat utilizer is required forany desired number of furnaces, though the capacity of each chamber orof the utilizer should be in proportion to the entire waste-heat-Iiuearea and the aggregate of interstices in the checker-chamber should beabout one-fifth greater than the Waste-heatflue area to allow forfriction through the in- 8o terstices of the checker-work.

Following is a detailed description of my improved apparatus employedwith. only one furnace, as shown, though with the foregoing` explanationits employment with a number of furnaces will be readily understood.

A is the furnace, of which Bis the combustion-chamber, and C is theoutlet-pipe for the 'partition r, extending to the head q into twochambers filled with spaced fire-brick, as shown, and formingchecker-chambers Eand E for storing waste heat, as hereinafterdescribed. The head q terminates in a crown p, into which the pipe Cleads. In the head q at the upper end of the partition fr is a Ion valveo on a rock-shaft n, journaled at opposite sides of the structure andprotruding beyoud one side of the same, as shown in Fig. 2, for apurpose hereinafter described. At the one side of the base of theutilizer D isa horizontal ue F, passing ports m and Zin the adjacentside of the said base and leading to the stack. (Nottshown.) Valveskandzare supported to be raised and lowered in suitable guides withrelation to the ports 'm and l to open and close them to the fiue F.

G is a horizontal flue extending across the base of the opposite side ofthe utilizer D and leading to the combustion-cha1nber B of the furnaceA. In this side of the said base are ports fm and Z', corresponding withthe ports m and l and opening into the iiue G, which passes them, and,like the ports Z and m, having their communication with the Vadjacentflue controlled by valves k andi. The valves k and 7c are connected`together bya cable `h, passing over a guide-pulley h', supported toextend from a side of the crown p, and the valves c' and t" aresimilarly connected by a cable g, passing over a pulley g,.supported toextend from the opposite side of 4the crown, other pulleys v beingprovided to guide the cables over the head.

In one side of the utilizer D, (see Fig. 2,)

A near its upper end, oriu .the head portion q thereof, are ports f andf', leading, respectively, from the air-supply (orouter air) into thechambers E and E', and having pivoted adjacent to them the covers orvalves e and e', connected from corresponding points, where links e2extend from them, with 4opposite ends of a lever d, secured at itsceuterto the protruding end of the rock-shaft n. The lever d hasextending from itctransversely an arm d', which renders it a doublebell-crank. I

Above the ports f and f ,are guide-,pulleys o', over which extends Aabranch cable c,connecting the two cables .h and g, and with the cable cis connected the arm d of the bellcrank.

From the foregoing description of the apn paratus the operation will beunderstood to be as follows: The valve ois adapted to 4beA turn ed :bythe shaft n from the position shown .of .bearing iat rits free .endagainst a stop o',

Figr, wherein itshutso thechamber E from the pipe C and openscommunication of the latter .with the chamber E .to the position of sobearing against ,the stop o2, wherein it opens communication to thechamber E from the pipe and closes that from the pipe-to the chamber E.Turning of .the shaft n to throw the valve o is produced by properlypulling the cables h g. Thus to have thrown the said valve to theposition illustrated the pull may have been exerted on the ycable g, andthe effect thereof was not .only to throw the valve o through connectionof the bell-crank with the branch cable c, but also to lower the lvalvez' and raise the valve i', thereby closing the port Z to the stack-flueF and .opening the port Z to the air-fine G and to raise the valve loand lower the valve lo', thereby opening the port m to the stack-flueandl closing the port m tothe air-flue. A further result of theoperation described was, by the resultant action of the lever d, to openthe air-inlet port e and close the port e', so that the ultimate resultproduced was to enable the hot products of combustion from the pipe C topass through thechecker-chamber E and outto the stack by way of the fineF, thereby heating the checker-work, and to admit air into the chamber Eand direct it through the latter to the combustion-chamber of thefurnace by way of the iiue G. If, as is to be supposed, the chamber Ehas been previously heated in the manner the chamber E is being heated,the air passed through it will be heated on its way to the furnace.

It should be .stated that I provide in the upper end of eachchecker-chambera detlector a, Fig. 4, extending from oneside thereof atoprevent the draft from drawing the products of combustion through only aportion of the brick -work, which would prevent uniform heating thereofand .entail 'loss'of the heat. The mechanism is thus adaptedtobeoperated to induce the passage of products of combustion and that ofair through keach checkerchamber, the former to thestack and the llatterto the combustion-chamber `through .each of the checker-chambers, theperiods at which the chan ges are madebeing dependent on the conditionas totemperature of theair-.heating Athe fuel employed for .the furnaceAand lthe latter -be of a kind adapted to be heated vwith the gas. Theopportunity :for using such waste gas for heating the chambers wouldarise whenever the fuel-supply .-to the furnace .and as a consequencethe .operation .of the producer are discontinued temporarily, when, ofcourse, the distillationof gas in the producer is not stoppedimmediatelibutvcontinued until the Amaterial(coal) has been `used up.The product .thus arising I referto .by the term waste gas, which,instead ,of :being wasted, serves for heating ,the checkerchambers. Italsoserves to sburn outa-ny soot that may bedeposited in Athe ntersticesAof the checker-work.

The Vfines F and G, instead of being .pro vided at opposite sides of.the structure D, may be on the same side thereof aud,;i1f desired,imposed one on the other. :Changes such as these are too obvious torequire illustration.

IOC

What I claim as new, `and desire to secure by Letters Patent, isa

heat-utilizing apparatus D, separate and extraneous from the heater andinterposed between it and the stack and comprising checker-chambers Eand E', separated by a Wall r and provided With an air-supply port atthe inlet end and with ports m and Z and'm and Z at the outlet end, aflue C, leading from the discharge end of the heater to the inlet end ofthe checker-chambers, a stack-flue F, leading from the saidchecker-chambers past the portsm and Z to thestack, valves Za and z' forcontrolling communication between the fine F and chambers E and Ethrough the ports m and Z, a hot-air iiue G, leading from the saidchambers past the ports m and Z t0 the heater and provided with valves kand z" for controlling communication between it and the chambers'throughthe ports m and Z', and a valve o, interposed between thechecker-chambers at their inlet end and connected With the said valvesof the other ports of the apparatus and operating through saidconnection by turning it to produce simultaneously communication of theflue C with the stack-Hue F through one chamber and of t-he hot-air flueG through the other chamber with its air-inlet port, substantiali y asdescribed.

2. In combination with a heater A, a wasteheat utilizer D, divided by aWall 'r into chambers' E and E', containing interstitial piles ofincombustible material and having a common inlet in the upper part ofthe structure, into Which the pipe C from the heater leads, airinletports f and f,leadinginto the chambers and provided with valves e ande', a valve 0, supported above the Wall fr on a roek-shaftn, carrying alever CZ, With Which the valves of the air-inlet ports are -connect-ed,a flue F, leading to the stack from one side of the base of the device Dand communicating With the chambers through ports m and Z, having valvesZaand t', and an air-flue G, leading to the heater from the oppositeside of the device D- and communicating with the chambers through portsm and Z, having valves Zo and 71', connected, respectively, with thevalves k and z' and with the lever d, the whole being constructed andarranged to operate substantially as described.

WILLIAM A. KONEMAN.

In presence of- J. W. DYRENFORTH, M. J. FROST.

